Mechanical cleaning device for heat exchangers

Abstract

The utility model relates to heat exchanger cleaning technical field discloses a heat exchanger mechanical cleaning device, include: cleaning platform, turnover mechanism, mobile cleaning mechanism, wherein, the upper end of cleaning platform is equipped with turnover mechanism, is fixed with two rails on the cleaning platform of the front and rear sides of turnover mechanism symmetry, and the both ends of two rails are fixedly arranged with the limiting piece, and mobile cleaning mechanism is arranged on the rail and can be limitedly moved. The utility model through the mobile cleaning mechanism first cleaning is completed after the vertical standing of plate heat exchanger, then using turnover mechanism can carry out 180 degree overturning to plate heat exchanger, and through mobile cleaning mechanism, plate heat exchanger is cleaned again, through changing the attitude of plate heat exchanger, can make water flow to impact heat exchanger with different angle, can more effectively remove the adhering matter, can further remove residual dirt and deposit, ensure that the heat exchanger is cleaned fully.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger cleaning technology, and in particular to a mechanical cleaning device for heat exchangers. Background Technology

[0002] Plate heat exchangers are widely used in various fields such as chemical, food, pharmaceutical, and HVAC industries due to their compact structure, high heat transfer efficiency, and ease of disassembly and cleaning. However, during long-term operation, dirt, impurities, or microbial deposits easily accumulate on the surface of the heat exchanger, seriously affecting heat transfer efficiency and system operational stability.

[0003] Currently, existing devices can only perform cleaning operations in one direction. In actual use, heat exchangers have complex internal structures and uneven flow channel distribution, and some areas are prone to forming dead zones for sedimentation due to gravity. Existing cleaning equipment cannot rotate the heat exchanger, resulting in certain areas remaining in cleaning blind spots for extended periods, leading to unsatisfactory cleaning results.

[0004] Secondly, traditional cleaning devices can only rinse or scrub one side or a local area of ​​the heat exchanger, making it difficult to completely remove internal scale and resulting in a small cleaning range.

[0005] Therefore, it is necessary to provide a heat exchanger mechanical cleaning device to solve the problems mentioned in the background art. Utility Model Content

[0006] To address the aforementioned problems, this application provides a heat exchanger mechanical cleaning device to solve the issues mentioned in the background art, such as the inability to rotate the device for all-round cleaning and the small cleaning range.

[0007] To achieve the objectives of this application, the following technical solution is provided:

[0008] This application provides a heat exchanger mechanical cleaning device, including: a cleaning table, a flipping mechanism, and a moving cleaning mechanism. The upper end of the cleaning table is provided with a flipping mechanism. Two guide rails are symmetrically fixed on the cleaning table located on the front and rear sides of the flipping mechanism. Limiting plates are fixedly provided at both ends of the two guide rails, and the moving cleaning mechanism is provided on the guide rails in a limited movement.

[0009] Specifically, the flipping mechanism includes four rectangular support seats fixedly mounted on the upper part of the washing table. Each support seat is rotatably equipped with a first grooved wheel. A first ring body is rotatably mounted on the two first grooved wheels on the left side, and a second ring body is rotatably mounted on the two first grooved wheels on the right side. A first chain is fixedly mounted circumferentially on the second ring body. Positioning plates are symmetrically fixedly mounted at the upper and lower ends of the first and second ring bodies. A U-shaped support plate is fixedly mounted between the positioning plates located at the upper ends of the first and second ring bodies, and a U-shaped support plate is fixedly mounted between the positioning plates located at the lower ends of the first and second ring bodies. The system is equipped with a U-shaped support plate, on which multiple evenly distributed rollers are rotatably mounted. A support plate is fixedly mounted on the lower side of the second ring body away from the first ring body. At least two rollers are rotatably mounted on the upper end of the support plate. A first forward and reverse motor is fixedly mounted on the upper end of the cleaning table. A first sprocket is fixedly mounted circumferentially on the output end of the first forward and reverse motor. The first sprocket is connected to the first chain for transmission. Telescopic cylinders are symmetrically fixed on the left and right sides of the upper U-shaped support plate. Abutment plates are fixedly mounted on the output ends of the telescopic cylinders. An L-shaped plate is fixedly mounted on the front side of the second ring body near the first ring body.

[0010] In one possible implementation, the mobile cleaning mechanism includes a second grooved wheel movably mounted on the guide rail. At least four second grooved wheels are configured, and an even number of second grooved wheels are provided. Half of the second grooved wheels are mounted on a single guide rail. The second grooved wheels are rotatably mounted at the lower end of the gantry frame. A U-shaped tube is fixedly mounted on the inner side of the gantry frame. Multiple high-pressure nozzles are fixedly mounted on both inner sides of the U-shaped tube from top to bottom. The multiple high-pressure nozzles are all connected to the interior of the U-shaped tube.

[0011] In one possible implementation, a drive assembly is installed inside the gantry.

[0012] In one possible implementation, the drive assembly includes a second forward and reverse motor fixedly disposed inside the gantry frame. A second sprocket is fixedly disposed circumferentially at the output end of the second forward and reverse motor, and a third sprocket is coaxially fixedly disposed on one of the second slotted sprockets. The second sprocket and the third sprocket are connected by a second chain for transmission.

[0013] In one possible implementation, the U-shaped tube is connected to the inlet pipe, and the inlet pipe is connected to the pump body.

[0014] In one possible implementation, a controller is fixedly installed on the cleaning table, and the controller is connected to the first forward and reverse motor, the second forward and reverse motor, the telescopic cylinder and the pump body respectively.

[0015] The beneficial effects of this utility model are:

[0016] 1. After the plate heat exchanger is initially cleaned by the moving cleaning mechanism while standing upright, the plate heat exchanger can be rotated 180° using the flipping mechanism and then cleaned again by the moving cleaning mechanism. By changing the posture of the plate heat exchanger, the water flow can impact the inside of the heat exchanger at different angles, which can more effectively remove the attached substances and further remove residual dirt and deposits, ensuring that the inside of the heat exchanger is thoroughly cleaned.

[0017] 2. This utility model places the heat exchanger on rollers and then cleans the plate heat exchanger by moving the cleaning mechanism on the guide rail, thereby achieving continuous scanning cleaning of the entire heat exchanger with a large cleaning range, which can effectively avoid cleaning blind spots. Attached Figure Description

[0018] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the flipping mechanism in this utility model;

[0021] Figure 3 This is a schematic diagram of the mobile cleaning mechanism in this utility model;

[0022] Figure 4 This is a schematic diagram of the drive component in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the U-shaped tube, high-pressure nozzle, and liquid inlet pipe in this utility model;

[0024] Reference numerals: 1. Cleaning table; 2. Tilting mechanism; 3. Guide rail; 4. Limiting plate; 5. Moving cleaning mechanism; 6. Controller; 201. Support base; 202. First grooved wheel; 203. First ring body; 204. Second ring body; 205. First chain; 206. Positioning plate; 207. U-shaped support plate; 208. Roller; 209. Support plate; 210. Roller; 211. First forward and reverse motor; 212. First sprocket; 213. Telescopic cylinder; 214. Abutment plate; 215. L-shaped plate; 51. Second grooved wheel; 52. Drive assembly; 53. Gantry frame; 54. U-shaped tube; 55. High-pressure nozzle; 56. Liquid inlet pipe; 521. Second forward and reverse motor; 522. Second sprocket; 523. Third sprocket; 524. Second chain. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this application, unless otherwise stated, "multiple" means three or more.

[0027] Figures 1-5 A heat exchanger mechanical cleaning device provided in this application embodiment includes: a cleaning platform 1, a flipping mechanism 2, and a moving cleaning mechanism 5. The upper end of the cleaning platform 1 is provided with the flipping mechanism 2. Two guide rails 3 are symmetrically fixed on the cleaning platform 1 located on the front and rear sides of the flipping mechanism 2. Limiting plates 4 are fixedly provided at both ends of the two guide rails 3, and the moving cleaning mechanism 5 is provided on the guide rails 3 in a limited movement.

[0028] Specifically, the flipping mechanism 2 includes four rectangular support seats 201 fixedly mounted on the upper end of the cleaning table 1. Each support seat 201 is rotatably equipped with a first grooved wheel 202. A first ring body 203 is rotatably mounted on the two first grooved wheels 202 on the left side, and a second ring body 204 is rotatably mounted on the two first grooved wheels 202 on the right side. A first chain 205 is fixedly mounted circumferentially on the second ring body 204. Positioning plates 206 are symmetrically fixedly mounted at the upper and lower ends of the first ring body 203 and the second ring body 204. A U-shaped support plate 207 is fixedly mounted between the positioning plates 206 located at the upper ends of the first ring body 203 and the second ring body 204, and a U-shaped support plate 207 is fixedly mounted between the positioning plates 206 located at the lower ends of the first ring body 203 and the second ring body 204. A U-shaped support plate 207 is fixedly provided, and multiple evenly distributed rollers 208 are rotatably provided on the U-shaped support plate 207. A support plate 209 is fixedly provided on the lower side of the end of the second ring body 204 away from the first ring body 203. At least two rollers 210 are rotatably provided on the upper end of the support plate 209. A first forward and reverse motor 211 is fixedly provided on the upper end of the washing table 1. A first sprocket 212 is fixedly provided circumferentially on the output end of the first forward and reverse motor 211. The first sprocket 212 is connected to the first chain 205 for transmission. Telescopic cylinders 213 are symmetrically fixed on the left and right sides of the U-shaped support plate 207 located at the upper end. Abutment plates 214 are fixedly provided on the output ends of the telescopic cylinders 213. An L-shaped plate 215 is fixedly provided on the front side of the end of the second ring body 204 near the first ring body 203.

[0029] Using the above technical solution, one end of the plate heat exchanger is first mounted on roller 210, and then the other end of the plate heat exchanger is pushed so that the plate heat exchanger is completely placed on the lower roller 208. The moving cleaning mechanism 5 is then activated. While the moving cleaning mechanism 5 moves along the guide rail 3, the water jet from the moving cleaning mechanism 5 cleans the heat exchanger. After the moving cleaning mechanism 5 stops moving, the telescopic cylinder 213 is extended, and the abutment plate 214 abuts against the plate heat exchanger. Then, the first forward / reverse motor 211 is controlled to start clockwise. The first forward / reverse motor 211, through the... A sprocket 212 drives the first chain 205 to rotate counterclockwise, causing the second ring 204 and the first ring 203 to rotate counterclockwise. The plate heat exchanger rotates 180° under the support of the L-shaped plate 215 and the abutment plate 214. The plate heat exchanger contacts the roller 208 on the side with the telescopic cylinder 213. Then, the telescopic cylinder 213 is controlled to return to its initial state. Then, the moving cleaning mechanism 5 is controlled to move in the opposite direction along the guide rail 3. At the same time, the water jet from the high-pressure nozzle 55 performs a secondary cleaning of the heat exchanger. After the moving cleaning mechanism 5 stops, the cleaning work is completed.

[0030] Based on the above technical solution, after the plate heat exchanger is initially cleaned by the moving cleaning mechanism 5 while standing upright, the plate heat exchanger can be rotated 180° using the flipping mechanism 2, and then cleaned again by the moving cleaning mechanism 5. By changing the posture of the plate heat exchanger, the water flow can impact the inside of the heat exchanger at different angles, which can more effectively remove the attached substances and further remove residual dirt and deposits, ensuring that the inside of the heat exchanger is thoroughly cleaned.

[0031] In one possible implementation, the mobile cleaning mechanism 5 includes a second grooved wheel 51 movably mounted on the guide rail 3. At least four second grooved wheels 51 are configured, and an even number of second grooved wheels 51 are provided. Half of the second grooved wheels 51 are mounted on a single guide rail 3. The second grooved wheels 51 are rotatably mounted at the lower end of the gantry frame 53. A U-shaped tube 54 is fixedly mounted on the inner side of the gantry frame 53. Multiple high-pressure nozzles 55 are fixedly mounted on both inner sides of the U-shaped tube 54 from top to bottom. The multiple high-pressure nozzles 55 are all connected to the interior of the U-shaped tube 54.

[0032] In one possible implementation, a drive assembly 52 is installed inside the gantry 53.

[0033] In one possible implementation, the drive assembly 52 includes a second forward and reverse motor 521 fixedly disposed inside the gantry frame 53. A second sprocket 522 is fixedly disposed circumferentially at the output end of the second forward and reverse motor 521, and a third sprocket 523 is coaxially fixedly disposed on one of the second grooved wheels 51. The second sprocket 522 and the third sprocket 523 are connected by a second chain 524.

[0034] With the above technical solution, after the second forward and reverse motor 521 is started, the second forward and reverse motor 521 drives the second sprocket 522 to rotate. The second sprocket 522 drives the third sprocket 523 to rotate through the second chain 524. The third sprocket 523 rotates synchronously with the corresponding second grooved wheel 51, so that while the second grooved wheel 51 moves along the guide rail 3, the water jet sprayed from the high-pressure nozzle 55 cleans the heat exchanger, thereby realizing continuous scanning cleaning of the entire heat exchanger. The cleaning range is large and can effectively avoid cleaning blind spots.

[0035] In one possible implementation, the U-shaped tube 54 is connected to the inlet pipe 56, which is connected to the pump body.

[0036] In one possible implementation, a controller 6 is fixedly installed on the cleaning platform 1. The controller 6 is connected to the first reversible motor 211, the second reversible motor 521, the telescopic cylinder 213, and the pump body. That is, the controller 6 can set the speed, forward and reverse rotation, and start and stop time of the second reversible motor 521, and can control the water pressure of the pump body. The controller 6 can also control the forward and reverse rotation of the first reversible motor 211, so that the first ring body 203 and the second ring body 204 can rotate 180° clockwise and counterclockwise. The controller 6 can also control the extension and retraction of the telescopic cylinder 213.

[0037] It should be noted that the speed of the second forward and reverse motor 521 can be set by the controller 6, while the length of the guide rail 3 is fixed. That is, the moving distance of the gantry 53 is a fixed value, and the distance that the gantry 53 moves from one end of the guide rail 3 to the other end is a fixed value. In other words, the start and stop time of the second forward and reverse motor 521 is a fixed value related to the speed, and the time for the gantry 53 to move from one end of the guide rail 3 to the other end (stationary → moving → stationary) is a fixed value related to the speed.

[0038] Working principle:

[0039] First, one end of the plate heat exchanger is mounted on roller 210, then the other end is pushed so that the plate heat exchanger is completely placed on the lower roller 208. The controller 6 sets the speed (start and stop times are determined) of the second reversible motor 521 and the water pressure of the pump body, and starts the second reversible motor 521 and the pump body. While the second grooved wheel 51 moves along the guide rail 3, the water jet from the high-pressure nozzle 55 cleans the heat exchanger. After the second reversible motor 521 stops rotating, the pump body is turned off. Then, the controller 6 controls the extension cylinder 213 to extend, and the abutment plate 214 abuts against the plate heat exchanger. Then, the first reversible motor 211 is controlled to start clockwise. The first reversible motor 211... The first sprocket 212 drives the first chain 205 to rotate counterclockwise, causing the second ring 204 and the first ring 203 to rotate counterclockwise. The plate heat exchanger rotates 180° under the support of the L-shaped plate 215 and the abutment plate 214. The plate heat exchanger contacts the roller 208 on the side with the telescopic cylinder 213. Then, the telescopic cylinder 213 is controlled to return to its initial state. Next, the controller 6 controls the second forward and reverse motor 521 to rotate in the opposite direction (the start and stop time remains unchanged) and turns on the pump. While the second grooved wheel 51 moves in the opposite direction along the guide rail 3, the water jet from the high-pressure nozzle 55 performs a secondary cleaning of the heat exchanger. After the second forward and reverse motor 521 stops rotating again, the pump is turned off, and the cleaning work is completed.

[0040] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. This application is not limited to the exact structures described above and illustrated in the accompanying drawings, and it should not be considered that the specific implementation of this application is limited to these descriptions. For those skilled in the art, various changes and modifications made without departing from the concept of this application should be considered to fall within the protection scope of this application.

Claims

1. A mechanical cleaning device for heat exchangers, comprising: A cleaning table (1), a flipping mechanism (2), and a moving cleaning mechanism (5) are characterized in that a flipping mechanism (2) is installed at the upper end of the cleaning table (1), and two guide rails (3) are symmetrically fixed on the cleaning table (1) located on the front and rear sides of the flipping mechanism (2). Limiting plates (4) are fixedly installed at both ends of the two guide rails (3), and a moving cleaning mechanism (5) is provided on the guide rails (3) in a limited movement. Specifically, the flipping mechanism (2) includes four rectangular support seats (201) fixedly mounted on the upper end of the cleaning table (1). Each support seat (201) is rotatably provided with a first grooved wheel (202). A first ring body (203) is rotatably mounted on the two first grooved wheels (202) on the left side, and a second ring body (204) is rotatably mounted on the two first grooved wheels (202) on the right side. A first chain is fixedly mounted on the circumference of the second ring body (204). 205), positioning plates (206) are symmetrically fixed at the upper and lower ends of the first ring body (203), and positioning plates (206) are symmetrically fixed at the upper and lower ends of the second ring body (204). A U-shaped support plate (207) is fixedly arranged between the positioning plates (206) located at the upper ends of the first ring body (203) and the second ring body (204), and between the positioning plates (206) located at the lower ends of the first ring body (203) and the second ring body (204). A U-shaped support plate (207) is fixedly installed, and multiple evenly distributed rollers (208) are rotatably installed on the U-shaped support plate (207). A support plate (209) is fixedly installed on the lower side of the end of the second ring body (204) away from the first ring body (203). At least two rollers (210) are rotatably installed on the upper end of the support plate (209). A first forward and reverse motor (211) is fixedly installed on the upper end of the washing table (1). A first sprocket (212) is fixedly arranged circumferentially at the output end of the 211), the first sprocket (212) is connected to the first chain (205) for transmission, and telescopic cylinders (213) are symmetrically fixed on the left and right sides of the U-shaped support plate (207) at the upper end. Each telescopic cylinder (213) has an abutment plate (214) fixedly arranged at its output end, and an L-shaped plate (215) is fixedly arranged on the front side of the second ring (204) near the first ring (203).

2. The heat exchanger mechanical cleaning device according to claim 1, characterized in that, The mobile cleaning mechanism (5) includes a second grooved wheel (51) movably mounted on the guide rail (3). At least four second grooved wheels (51) are configured, and the number of second grooved wheels (51) is even. Half of the second grooved wheels (51) are mounted on a single guide rail (3). The second grooved wheels (51) are rotatably mounted at the lower end of the gantry frame (53). A U-shaped tube (54) is fixedly mounted on the inner side of the gantry frame (53). Multiple high-pressure nozzles (55) are fixedly mounted on both inner sides of the U-shaped tube (54) from top to bottom. The multiple high-pressure nozzles (55) are all connected to the inside of the U-shaped tube (54).

3. The heat exchanger mechanical cleaning device according to claim 2, characterized in that, The gantry (53) is equipped with a drive assembly (52).

4. The heat exchanger mechanical cleaning device according to claim 3, characterized in that, The drive assembly (52) includes a second forward and reverse motor (521) fixedly disposed inside the gantry frame (53). A second sprocket (522) is fixedly disposed circumferentially at the output end of the second forward and reverse motor (521), and a third sprocket (523) is fixedly disposed coaxially with one of the second grooved wheels (51). The second sprocket (522) and the third sprocket (523) are connected by a second chain (524).

5. A heat exchanger mechanical cleaning device according to claim 4, characterized in that, The U-shaped tube (54) is connected to the liquid inlet pipe (56), and the liquid inlet pipe (56) is connected to the pump body.

6. The heat exchanger mechanical cleaning device according to claim 5, characterized in that, A controller (6) is fixedly installed on the cleaning platform (1). The controller (6) is connected to the first forward and reverse motor (211), the second forward and reverse motor (521), the telescopic cylinder (213), and the pump body, respectively.

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